As a Jellyfin-fanboy: you are right. Plex is easier to deal with out of the box.
Anything else would not make any sense for a paid service.

I’d say though, if you dedicate the time to set it up correctly, it is an equally good solution and it’s free.
If time is a factor in your life, then there is no shame in paying for something that just works. It’s why I have a Synology NAS and not a self-built Unraid or OMV server.